Tire plug



D. COHEN.

TIRE PLUG.

APPLICATION FILED JAN. 15. 1921..

Patented Apia 4, 1922.

I/IIIIIII cam- INVENTOR.

UNITED STATES DAN COHEN, OF TENNEfiSEE.

TIRE PLUG.

Specification of Letters Patent.

Mtented Apr. 4:, 1922.

Application filed January 15,1921. Serial No. 437 553.

1'0 all ii /40m it may concern:

Be it known that I, DAN COHEN, a citizen of the United States, residing at Memphis, in. the county of Shelby and State oi Ten-. nessee have invented certain new and uset'ul Improvements in Tire Plugs and I do hereby declare the following to be a full, clear and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relatesto new and useful improvements in tire plugs and more particularly to a plug adapted to be used on pneumatu; vehicle tires for closing a puncture or small blowout in the tire, the main object of the present invention being the provision of a tire plug which can be quickly and readily applied to a pneumatic tire for closing a puncture and thus eliminate the necessity of having the same vulcanized or the use of the usual well known adhesive patches in use at the present time.

Anoth or object of this invention is the provision of a tire plug whereby means is pro.- vided for inserting the plug into the tire through the. puncture and arranging the same in position to entirely close the puncture. the means for inserting the plug being removed so that the puncture will be quickly mended and a smooth and unbrokensurface to the exterior of the tire.

A further object of this invention is the provision of a tire plug having means whereby the plug can be quickly and readily inserted. into. the tire through the puncture opening and the means for uiding the plug thrimgh the puncture readifr removed from the inner end thereof after the plug has. passed into the tire through the puncture.

With the above and other objects in view the. invention consists in the novel features of construction, combination and arrangement of parts hereinafter more fully set forth, pointed out in the. claims and shown in the accompanying drawings in which:

Figure l. is a transverse sectional view taken through a pneumatic tire illustrating my improved plug in position and a guiding member about to be removed from the plug.

Fig. 2 is a similar View showing the guidingmernber removed and the clamping nut down in position against the tread of the tire.

Fig. 3 is a similar view showing the plug in its finished stat-e.

Fig. l is a longitudinal sectional view of a tire illustrating a slightly modified. form oil the plug.

Fig. 5 is an elevation, parts broken away and in section, the tire being illustrated. in dotted lines.

Referring now more particularly to the drawings the numeral 1 indicates the body portion of a pneumatic vehicle tire and in Fig. l the plug has been illustrated as shown in position with respect to the puncture in .thetire body, the guiding member being in a position whereby the same can be rcadil removed from the inner endoi the plug.

In the construction of the plug, I provide the clamping body 2 preferably cylindrical in form as clearly illustrated in Fig. 2 and having a stem 3 projecting from one face thereof and preferably screw threaded as shown at 4, the outer end of said stem, being 7 only sufficient screw threads are HBCCSSHJF) to hold the screw member 8 in position with respect to the outer end of the plug 2 until the screw member 8 and plug 2 are arranged upon the interior of the tire body 2. In applying my improved-plug to a puncture in a pneumatic tire body the pointed end oi? the screwmembcr 8 is inserted into the puncture opening and the stem l turned so that the screw member 8 will. force its ay through the tire body, carrying the plug 2 with. it. This operation is continued an til the screw member 8 and the plug 2 are disposed entirely within the body of the tire. The tire is then depressed until the. outer end of the screw member 8 engages the opposite side walh the stem 4 is then rotated baekwardly in order to unscrew the screw member 8 from its connection with the plug body 2. The clamping washer 9 is then screwed downwardly upon the stem- 4 with the hand until it engages the outer surface of the tire. The stem 4- is then rotated so as to bring the clamping washer 9 and the plug body 2 toward each other and if necessary a small tool can be inserted.

through the eye 5 to readily accomplish this turning movement of the stem. After the clamping washer 9 and the plug body 2 have been forced into tight engagement with opposite sides of the tire body, the bttill lrfis then cut off even with the outer surface of the washer 9 as illustrated in Fig. 3 to provide a smooth and unbroken finish to the outer surface of the tire.

It will be noted that the upper face of the plug body 2 is provided with a concave surface indicated. at 10, portions of the tire body being forced into this concavity so as to insure the ti ht closing of the puncture opening when t ie plug 2 and the washer 4: are forced toward each other through the turning movement of the stem l.

In Fig. 4. I have illustrated a slightly modified form of the invention wherein the outer end of the plug body 2 is provided with a transverse groove 3' having inclined side walls and adapted to receive the dove-tailed lug 4 formed upon the inner end of the screw member 8. From this it will be apparcut that when the screw member 8 is being )assed through the body of the tire, it will.

e readily rotated through the movement of the stem 4' and when the body .2 and screw member 8 have been passed entirely into the body of the tire, the screw member 8 can be readily removed by laying the tire upon its side and jarring the screw member 8 loose from its connection with the plug 2'. In the construction of this form of the invention it will be preferred to have the dove-tailed connection extending at right angles to the eye 5 so that the operator will readil a position so that the same can be readily jarred loose from its connection with the plug 2'. i

In Fig.5 I have illustrated another form of the invention wherein the plug body 2 is provided with a straight transverse opening 3 and the inner end of the screw member 8 is provided with an elongated plug 7 adapted to be inserted within the opening 3- so that the screw member 8 can be readily rotated through the medium of the stem 4* when engaged with the puncture opening in the tire body. The rotation of stem 4 will rotate the screw 8* so that the same will readily pass through the body of the tire to the interior thereof and from this it will be apparent that after the screw 8 has reached the interior of the tire, a slight jarring upon the tire body will readily shake the screw 8 from its connection with the slug 2" and permit the screw member 8 to rop into the tire body. In using the various types of cone plugs at the present time, the plugs remain attached to the stem thus having the plug protruding into the inner tire so that when a new puncture occurs and the tire necessarily becomes fiat, the proknow when thescrew member is in tire. but the main feature of my invention the fact that the guiding screw can be quickly and readily detached from the inner end of the plug after its use has been carried out in guiding the plug through the puncture in the tire body of the tire.

I claim as my invention:

1. A device of the class described including a plug, a threaded stem formed integral therewith, a guiding screw detachably con nected to the plug in opposed relation with the stem, and a clamping washer threaded upon the stem as and for the purpose set forth.

2. A device of the class described including a plug member having a threaded stem, a guiding screw detachably connected with the plug in opposed relation with respect to the stem whereby to guide the plug through a puncture opening in a pneumatic tire, said guide screw being removable when disposed upon the'interior of the tire, and a clampingmember threaded upon the stem in. opposed relation with the plu matic tube, and a clamping washer threaded upon the stem and arranged in opposed relation with the plug, said stem being severed at a point parallel with the'outer face of the washer after the washer has been screwed down tightly against the outer surface of the tube.

4. A device of the class described including a plug member, a guiding screw detachably connected with one end thereof, a

stem formed integral with the plug and pro jecting in opposed relation with the screw. a clamping washer threaded upon the stem whereby the rotation of the stem will bring the clamping washer and plug toward each other to clamp portions of a tube disposed between the same and said stem being severed flush with the outer face of the washer after the two members have been brought into clamping engagement with the tire body.

In testimony whereof I aflix my signature.

DAN COHEN. 

